Calibrachoa plant named ‘Duealrow’

ABSTRACT

A new and distinct cultivar of  Calibrachoa  plant named ‘Duealrow’, characterized by its compact, semi-upright and outwardly spreading to trailing and decumbent plant habit; freely branching habit; early and freely flowering habit; large white-colored flowers with red purple colored centers; and good garden performance.

Botanical designation: Calibrachoa sp.

Cultivar denomination: ‘DUEALROW’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofCalibrachoa plant, botanically known as Calibrachoa sp. and hereinafterreferred to by the name ‘Duealrow’.

The new Calibrachoa plant is a product of a planned breeding programconducted by the Inventor in Rheinberg, Germany. The objective of thebreeding program is to create new compact Calibrachoa plants with largeattractive flowers.

The new Calibrachoa plant originated from a cross-pollination made bythe Inventor in July, 2011 in Rheinberg, Germany of a proprietaryselection of Calibrachoa sp. identified as code number A10-5560-004, notpatented, as the female, or seed, parent with a proprietary selection ofCalibrachoa sp. identified as code number A10-7554-001, not patented, asthe male, or pollen, parent. The new Calibrachoa plant was discoveredand selected by the Inventor as a single flowering plant from within theprogeny of the stated cross-pollination in a controlled greenhouseenvironment in Rheinberg, Germany in May, 2013.

Asexual reproduction of the new Calibrachoa plant by vegetative terminalcuttings in a controlled greenhouse environment in Rheinberg, Germanysince June, 2013 has shown that the unique features of this newCalibrachoa plant are stable and reproduced true to type in successivegenerations.

SUMMARY OF THE INVENTION

Plants of the new Calibrachoa have not been observed under all possiblecombinations of environmental conditions and cultural practices. Thephenotype may vary somewhat with variations in environmental conditionssuch as temperature and light intensity without, however, any variancein genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘Duealrow’. These characteristics incombination distinguish ‘Duealrow’ as a new and distinct Calibrachoaplant:

-   -   1. Compact, semi-upright and outwardly spreading to trailing and        decumbent plant habit.    -   2. Freely branching habit.    -   3. Early and freely flowering habit.    -   4. Large white-colored flowers with red purple-colored centers.    -   5. Good garden performance.

The new Calibrachoa can be compared to plants of the female parentselection. Plants of the new Calibrachoa differ primarily from plants ofthe female parent selection in growth habit as plants of the newCalibrachoa are more vigorous than plants of the female parentselection. In addition, plants of the new Calibrachoa flower earlierthan plants of the female parent selection.

The new Calibrachoa can be compared to plants of the male parentselection. Plants of the new Calibrachoa differ primarily from plants ofthe male parent selection in branching habit as plants of the newCalibrachoa are more freely branching than plants of the male parentselection. In addition, plants of the new Calibrachoa have smallerflowers than plants of the male parent selection.

Plants of the new Calibrachoa can be compared to plants of Calibrachoasp. ‘Cal White’, disclosed in U.S. Plant Pat. No. 14,497. Inside-by-side comparisons, plants of the new Calibrachoa differedprimarily from plants of ‘Cal White’ in the following characteristics:

-   -   1. Plants of the new Calibrachoa were larger and more vigorous        than plants of ‘Cal White’.    -   2. Plants of the new Calibrachoa were more freely branching than        plants of ‘Cal White’.    -   3. Plants of the new Calibrachoa had thicker stems than plants        of ‘Cal White’.    -   4. Plants of the new Calibrachoa had broader leaves than plants        of ‘Cal White’.    -   5. Plants of the new Calibrachoa had larger flowers than plants        of ‘Cal White’.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearanceof the new Calibrachoa plant showing the colors as true as it isreasonably possible to obtain in colored reproductions of this type.Colors in the photograph may differ slightly from the color values citedin the detailed botanical description which accurately describe thecolors of the new Calibrachoa plant.

The photograph is a close-up view of typical flowers and leaves of‘Duealrow’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations, measurementsand values describe plants grown during the summer in 30-cm containersin a glass-covered greenhouse in Rheinberg, Germany and under culturalpractices typical of commercial Calibrachoa production. During theproduction of the plants, day and night temperatures averaged 18° C. andlight levels averaged 4,500 lux. Rooted young plants were pinched onetime three weeks after planting and were 13 weeks old when thephotograph and description were taken. In the following description,color references are made to The Royal Horticultural Society ColourChart, 2007 Edition, except where general terms of ordinary dictionarysignificance are used.

-   Botanical classification: Calibrachoa sp. ‘Duealrow’.-   Parentage:    -   -   Female, or seed, parent.—Proprietary selection of            Calibrachoa sp. identified as code number A10-5560-004, not            patented.        -   Male, or pollen, parent.—Proprietary selection of            Calibrachoa sp. identified as code number A10-7554-001, not            patented.-   Propagation:    -   -   Type.—By vegetative cuttings.        -   Time to initiate roots, summer.—About five days at            temperatures about 20° C.        -   Time to initiate roots, winter.—About seven days at            temperatures about 20° C.        -   Time to produce a rooted young plant, summer.—About three            weeks at temperatures about 20° C.        -   Time to produce a rooted young plant, winter.—About four            weeks at temperatures about 20° C.        -   Root description.—Fine, fibrous; white in color.        -   Rooting habit.—Freely branching; dense.-   Plant description:    -   -   Plant and growth habit.—Compact, semi-upright and outwardly            spreading to trailing and decumbent plant habit; freely            branching habit with about twelve primary lateral branches            developing per plant; pinching enhances branching; vigorous            growth habit; moderate growth rate.        -   Plant height.—About 27 cm.        -   Plant diameter.—About 73 cm.-   Lateral branch description:    -   -   Length.—About 32 cm.        -   Diameter.—About 3 mm.        -   Internode length.—About 2.1 cm.        -   Strength.—Strong.        -   Aspect.—Initially upright to outwardly spreading to trailing            and decumbent.        -   Texture.—Pubescent.        -   Color.—Close to 144B.-   Leaf description:    -   -   Arrangement.—Alternate, simple.        -   Length.—About 2.2 cm.        -   Width.—About 1 cm.        -   Shape.—Oblanceolate.        -   Apex.—Rounded.        -   Base.—Cuneate.        -   Margin.—Entire.        -   Texture, upper and lower surfaces.—Pubescent.        -   Venation pattern.—Pinnate; arcuate.        -   Color.—Developing leaves, upper surface: Close to 144A.            Developing leaves, lower surface: Close to 147B. Fully            expanded leaves, upper surface: Close to 137B; venation,            close to 146B. Fully expanded leaves, lower surface: Close            to 137C; venation, close to 146C.        -   Petioles.—Length: About 1 mm. Diameter: About 1.3 mm.            Texture, upper and lower surfaces: Pubescent. Color, upper            surface: Close to 143B. Color, lower surface: Close to 143C.-   Flower description:    -   -   Flower arrangement and habit.—Single salverform flowers            arising from leaf axils; freely flowering habit with usually            about 100 to 120 flowers developing per plant; flowers face            upright or outwardly.        -   Fragrance.—None detected.        -   Natural flowering season.—Early flowering habit, plants of            the new Calibrachoa initiate and develop flowers about four            to five weeks after planting; plants flower continuously            from the spring throughout the summer in Germany.        -   Flower longevity.—Individual flowers last about seven to ten            days on the plant; flowers not persistent.        -   Flower diameter.—About 3 cm.        -   Flower length (height).—About 3 cm.        -   Flower throat diameter.—About 7.2 mm.        -   Flower tube length.—About 1.7 cm.        -   Flower tube diameter, base.—About 1.9 mm.        -   Flower buds.—Length: About 2.2 cm. Diameter: About 4.6 mm.            Shape: Elongated oblong. Color: Close to 158B.        -   Corolla.—Arrangement: Five petals fused at the base and            opening into a flared trumpet. Petal length from throat:            About 1.5 cm. Petal lobe width: About 1.6 cm. Petal shape:            Roughly spatulate. Petal apex: Mostly rounded to slightly            retuse. Petal margin: Entire. Petal texture, upper and lower            surfaces: Smooth, glabrous. Throat texture: Smooth,            glabrous. Tube texture: Smooth, glabrous. Color: Petal, when            opening, upper surface: Close to N155D. Petal, when opening,            lower surface: Close to N155B. Petal, fully opened, upper            surface: Close to N155B; towards the base, close to 57A;            venation, close to N81B; color becoming closer to N155C with            development. Petal, fully opened, lower surface: Close to            N155D; venation, close to 53A. Throat: Close to 153B;            venation, close to N81B. Tube: Close to 153B; venation,            close to N81B.        -   Calyx.—Arrangement: Star-shaped calyx with five sepals;            sepals fused at the base. Sepal length: About 1.3 cm. Sepal            width: About 2.2 mm. Sepal shape: Lanceolate. Sepal apex:            Acute. Sepal margin: Entire. Sepal texture, upper and lower            surfaces: Pubescent. Color, upper and lower surfaces: Close            to 146B.        -   Peduncles.—Length: About 1 cm. Diameter: About 1 mm. Angle:            About 45° from stem axis. Strength: Moderately strong.            Texture: Pubescent. Color: Close to 143C.-   Reproductive organs:    -   -   Stamens.—Quantity: Six per flower. Filament length: About            5.8 mm. Filament color: Close to 149D. Anther shape:            Ellipsoidal. Anther length: About 0.5 mm. Anther color:            Close to 2B. Pollen amount: Scarce. Pollen color: Close to            3A.        -   Pistils.—Quantity: One per flower. Pistil length: About            7.6 mm. Style length: About 6.6 mm. Style color: Close to            143C. Stigma shape: Ellipsoidal. Stigma color: Close to            144A. Ovary color: Close to 144B.        -   Seeds and fruits.—Seed and fruit development have not been            observed on plants of the new Calibrachoa.-   Garden performance: Plants of the new Calibrachoa have been observed    to have good garden performance and tolerate wind, rain and    temperatures ranging from about 5° C. to about 40° C.-   Pathogen & pest resistance: Plants of the new Calibrachoa have not    been observed to be resistant to pathogens and pests common to    Calibrachoa plants.

It is claimed:
 1. A new and distinct Calibrachoa plant named ‘Duealrow’as illustrated and described.